Multi-agent system: orchestrator and workers

In the orchestrator-worker pattern one agent breaks a task into steps and hands each step to a specialised worker. Here a research agent searches the web, a coding agent runs code in a sandbox, and a review agent checks the result before a human approves it. The pattern pays off when sub-tasks need different tools or different prompts. It also costs more tokens than a single agent, so start with one agent and split only where it helps.